
<h1><span class="yiyi-st" id="yiyi-13">numpy.ma.MaskedArray.ids</span></h1>
        <blockquote>
        <p>原文：<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.ma.MaskedArray.ids.html">https://docs.scipy.org/doc/numpy/reference/generated/numpy.ma.MaskedArray.ids.html</a></p>
        <p>译者：<a href="https://github.com/wizardforcel">飞龙</a> <a href="http://usyiyi.cn/">UsyiyiCN</a></p>
        <p>校对：（虚位以待）</p>
        </blockquote>
    
<dl class="method">
<dt id="numpy.ma.MaskedArray.ids"><span class="yiyi-st" id="yiyi-14"> <code class="descclassname">MaskedArray.</code><code class="descname">ids</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference external" href="http://github.com/numpy/numpy/blob/v1.11.3/numpy/ma/core.py#L4569-L4593"><span class="viewcode-link">[source]</span></a></span></dt>
<dd><p><span class="yiyi-st" id="yiyi-15">返回数据和掩码区域的地址。</span></p>
<table class="docutils field-list" frame="void" rules="none">
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<tbody valign="top">
<tr class="field-odd field"><th class="field-name"><span class="yiyi-st" id="yiyi-16">参数：</span></th><td class="field-body"><span class="yiyi-st" id="yiyi-17"><strong>无</strong></span></td>
</tr>
</tbody>
</table>
<p class="rubric"><span class="yiyi-st" id="yiyi-18">例子</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">ma</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">],</span> <span class="n">mask</span><span class="o">=</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">ids</span><span class="p">()</span>
<span class="go">(166670640, 166659832)</span>
</pre></div>
</div>
<p><span class="yiyi-st" id="yiyi-19">如果数组没有掩码，则返回<a class="reference internal" href="../maskedarray.baseclass.html#numpy.ma.nomask" title="numpy.ma.nomask"><code class="xref py py-obj docutils literal"><span class="pre">nomask</span></code></a>的地址。</span><span class="yiyi-st" id="yiyi-20">此地址通常不接近内存中的数据：</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">ma</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">])</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">ids</span><span class="p">()</span>
<span class="go">(166691080, 3083169284L)</span>
</pre></div>
</div>
</dd></dl>
